平炉合理供氧制度的探讨

• 作 者: 刘越表
• 机 构: 包钢经济技术情报研究所
• 出 处: 炼钢
• 发表日期: 1988年01期
• 关键词: 平炉 脱碳速度 供氧 吹氧 供氧强度 三枪 铁损 铁水 供氧量 包钢

包钢现有三座500t平炉,从1982年5月至今均为三枪顶吹氧。兑完第二罐铁水下枪,如无特殊情况,均为恒压(7～9kg/cm_2)、恒量(供氧量为5000～6000m~3/h、供氧强度为10～12m~3/h·t),直到精炼结束才停止吹氧。在生产实践中发现这种供氧制度有以下缺点:①在一炉钢的熔炼初期,造成很大的铁损,提高不了脱碳速度,还浪费了氧气;

Baotou existing three 500t flat hearth, from May 1982 until now are three shots top blowing oxygen. For the second tank of molten iron underwater gun, without special circumstances, are constant pressure (7 ~ 9kg / cm_2), constant amount (oxygen supply 5000 ~ 6000m ~ 3 / h, oxygen intensity of 10 ~ 12m ~ h · t), stop blowing oxygen until the end of the refining. In production practice found that this system of oxygen has the following disadvantages: ① In the early stage of a furnace smelting, resulting in a large iron loss, can not increase the rate of decarbonization, but also a waste of oxygen;